128388631

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 157593600

約数和(自身を除く): 29204969

約数列:

[1, 7, 37, 47, 53, 199, 259, 329, 371, 1393, 1739, 1961, 2491, 7363, 9353, 10547, 12173, 13727, 17437, 51541, 65471, 73829, 92167, 346061, 390239, 495709, 645169, 2422427, 2731673, 3469963, 18341233, 128388631]

約数ペア:

[(1, 128388631), (7, 18341233), (37, 3469963), (47, 2731673), (53, 2422427), (199, 645169), (259, 495709), (329, 390239), (371, 346061), (1393, 92167), (1739, 73829), (1961, 65471), (2491, 51541), (7363, 17437), (9353, 13727), (10547, 12173)]